In the following sentence, one phrase has been printed in bold. Below the sentence, three meanings are given. Select the correct meaning of the phrase from the options given below.

I'll have to work really hard for the theory part of the exam, but the practical part will be a piece of cake, because I've been practicing for so long.

 

A. something easily done

B. simple job that can straightforwardly be accomplished

C. something that puts you in trouble